Whats the best jets for my 2150 on my 258? - Pirate4x4.Com : 4x4 and Off-Road Forum

biggin82 · 04-26-2011, 07:08 PM

What is the best jet size for the 2150 motorcraft on a 258 with hei ignition? Seems to be running rich and have a little lag off of idle...

Xtremeyj420 · 04-26-2011, 07:30 PM

I run #46 jets in my 2100 on my 258 in my 87 yj. M also running the 1.21 venturing not the 1.08.... runs like a top and passes emissions fine in RI.
Thanks,
Mike...

TSwiss · 04-27-2011, 11:25 AM

Quote:

Originally Posted by biggin82

What is the best jet size for the 2150 motorcraft on a 258 with hei ignition? Seems to be running rich and have a little lag off of idle...

I have a 2100 with a 1.08 venturi on my 258. I am currently running #47 jets and have great drivability and running. When I was reading up on the swap, #47 jets and a 1.08 venturi were mentioned as the best combination for a 258.

biggin82 · 04-27-2011, 04:24 PM

Quote:

Originally Posted by Xtremeyj420

I run #46 jets in my 2100 on my 258 in my 87 yj. M also running the 1.21 venturing not the 1.08.... runs like a top and passes emissions fine in RI.
Thanks,
Mike...

Thanks! Mine also has the 1.21 venturi.

04-26-2011, 07:08 PM	#1 (permalink)
biggin82 Registered User Join Date: Apr 2011 Member # 189157 Posts: 2	Whats the best jets for my 2150 on my 258? What is the best jet size for the 2150 motorcraft on a 258 with hei ignition? Seems to be running rich and have a little lag off of idle...

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04-26-2011, 07:30 PM	#2 (permalink)
Xtremeyj420 Registered User Join Date: Feb 2008 Member # 108049 Location: Hopkinton, RI Posts: 63	I run #46 jets in my 2100 on my 258 in my 87 yj. M also running the 1.21 venturing not the 1.08.... runs like a top and passes emissions fine in RI. Thanks, Mike...